class TestChart(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
self.series = QLineSeries()
self.series.append(0, 6)
self.series.append(2, 4)
self.series.append(3, 8)
self.series.append(7, 4)
self.series.append(10, 5)
self.series.append(QPointF(11, 1))
self.series.append(QPointF(13, 3))
self.series.append(QPointF(17, 6))
self.series.append(QPointF(18, 3))
self.series.append(QPointF(20, 2))
self.chart = QChart()
self.chart.legend().hide()
self.chart.addSeries(self.series)
self.chart.createDefaultAxes()
self.chart.setTitle("Simple line chart example")
self.chartView = QChartView(self.chart)
self.chartView.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(self.chartView)
class TableWidget(QWidget):
def __init__(self):
QWidget.__init__(self)
self.model = CustomTableModel()
self.table_view = QTableView()
self.table_view.setModel(self.model)
self.table_view.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
self.table_view.verticalHeader().setSectionResizeMode(QHeaderView.Stretch)
self.chart = QChart()
self.chart.setAnimationOptions(QChart.AllAnimations)
self.series = QLineSeries()
self.series.setName("Line 1")
self.mapper = QVXYModelMapper(self)
self.mapper.setXColumn(0)
self.mapper.setYColumn(1)
self.mapper.setSeries(self.series)
self.mapper.setModel(self.model)
self.chart.addSeries(self.series)
# for storing color hex from the series
seriesColorHex = "#000000"
# get the color of the series and use it for showing the mapped area
seriesColorHex = "{}".format(self.series.pen().color().name())
self.model.add_mapping(seriesColorHex, QRect(0, 0, 2, self.model.rowCount()))
# series 2
self.series = QLineSeries()
self.series.setName("Line 2")
self.mapper = QVXYModelMapper(self)
self.mapper.setXColumn(2)
self.mapper.setYColumn(3)
self.mapper.setSeries(self.series)
self.mapper.setModel(self.model)
self.chart.addSeries(self.series)
# get the color of the series and use it for showing the mapped area
seriesColorHex = "{}".format(self.series.pen().color().name())
self.model.add_mapping(seriesColorHex, QRect(2, 0, 2, self.model.rowCount()))
self.chart.createDefaultAxes()
self.chart_view = QChartView(self.chart)
self.chart_view.setRenderHint(QPainter.Antialiasing)
self.chart_view.setMinimumSize(640, 480)
# create main layout
self.main_layout = QGridLayout()
self.main_layout.addWidget(self.table_view, 1, 0)
self.main_layout.addWidget(self.chart_view, 1, 1)
self.main_layout.setColumnStretch(1, 1)
self.main_layout.setColumnStretch(0, 0)
self.setLayout(self.main_layout)
def __init__(self):
QMainWindow.__init__(self)
set0 = QBarSet("Jane")
set1 = QBarSet("John")
set2 = QBarSet("Axel")
set3 = QBarSet("Mary")
set4 = QBarSet("Samantha")
set0.append([1, 2, 3, 4, 5, 6])
set1.append([5, 0, 0, 4, 0, 7])
set2.append([3, 5, 8, 13, 8, 5])
set3.append([5, 6, 7, 3, 4, 5])
set4.append([9, 7, 5, 3, 1, 2])
series = QPercentBarSeries()
series.append(set0)
series.append(set1)
series.append(set2)
series.append(set3)
series.append(set4)
chart = QChart()
chart.addSeries(series)
chart.setTitle("Simple percentbarchart example")
chart.setAnimationOptions(QChart.SeriesAnimations)
categories = ["Jan", "Feb", "Mar", "Apr", "May", "Jun"]
axis = QBarCategoryAxis()
axis.append(categories)
chart.createDefaultAxes()
chart.setAxisX(axis, series)
chart.legend().setVisible(True)
chart.legend().setAlignment(Qt.AlignBottom)
chart_view = QChartView(chart)
chart_view.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(chart_view)
class MainWidget(QWidget):
def __init__(self, parent=None):
super(MainWidget, self).__init__(parent)
self.chart = QChart()
self.series = QBarSeries()
self.main_layout = QGridLayout()
self.button_layout = QGridLayout()
self.font_layout = QFormLayout()
self.font_size = QDoubleSpinBox()
self.legend_posx = QDoubleSpinBox()
self.legend_posy = QDoubleSpinBox()
self.legend_width = QDoubleSpinBox()
self.legend_height = QDoubleSpinBox()
self.detach_legend_button = QPushButton("Toggle attached")
self.detach_legend_button.clicked.connect(self.toggle_attached)
self.button_layout.addWidget(self.detach_legend_button, 0, 0)
self.add_set_button = QPushButton("add barset")
self.add_set_button.clicked.connect(self.add_barset)
self.button_layout.addWidget(self.add_set_button, 2, 0)
self.remove_barset_button = QPushButton("remove barset")
self.remove_barset_button.clicked.connect(self.remove_barset)
self.button_layout.addWidget(self.remove_barset_button, 3, 0)
self.align_button = QPushButton("Align (Bottom)")
self.align_button.clicked.connect(self.set_legend_alignment)
self.button_layout.addWidget(self.align_button, 4, 0)
self.bold_button = QPushButton("Toggle bold")
self.bold_button.clicked.connect(self.toggle_bold)
self.button_layout.addWidget(self.bold_button, 8, 0)
self.italic_button = QPushButton("Toggle italic")
self.italic_button.clicked.connect(self.toggle_italic)
self.button_layout.addWidget(self.italic_button, 9, 0)
self.legend_posx.valueChanged.connect(self.update_legend_layout)
self.legend_posy.valueChanged.connect(self.update_legend_layout)
self.legend_width.valueChanged.connect(self.update_legend_layout)
self.legend_height.valueChanged.connect(self.update_legend_layout)
legend_layout = QFormLayout()
legend_layout.addRow("HPos", self.legend_posx)
legend_layout.addRow("VPos", self.legend_posy)
legend_layout.addRow("Width", self.legend_width)
legend_layout.addRow("Height", self.legend_height)
self.legend_settings = QGroupBox("Detached legend")
self.legend_settings.setLayout(legend_layout)
self.button_layout.addWidget(self.legend_settings)
self.legend_settings.setVisible(False)
# Create chart view with the chart
self.chart_view = QChartView(self.chart, self)
# Create spinbox to modify font size
self.font_size.setValue(self.chart.legend().font().pointSizeF())
self.font_size.valueChanged.connect(self.font_size_changed)
self.font_layout.addRow("Legend font size", self.font_size)
# Create layout for grid and detached legend
self.main_layout.addLayout(self.button_layout, 0, 0)
self.main_layout.addLayout(self.font_layout, 1, 0)
self.main_layout.addWidget(self.chart_view, 0, 1, 3, 1)
self.setLayout(self.main_layout)
self.create_series()
def create_series(self):
self.add_barset()
self.add_barset()
self.add_barset()
self.add_barset()
self.chart.addSeries(self.series)
self.chart.setTitle("Legend detach example")
self.chart.createDefaultAxes()
self.chart.legend().setVisible(True)
self.chart.legend().setAlignment(Qt.AlignBottom)
self.chart_view.setRenderHint(QPainter.Antialiasing)
def show_legend_spinbox(self):
self.legend_settings.setVisible(True)
chart_viewrect = self.chart_view.rect()
self.legend_posx.setMinimum(0)
self.legend_posx.setMaximum(chart_viewrect.width())
self.legend_posx.setValue(150)
self.legend_posy.setMinimum(0)
self.legend_posy.setMaximum(chart_viewrect.height())
self.legend_posy.setValue(150)
self.legend_width.setMinimum(0)
self.legend_width.setMaximum(chart_viewrect.width())
self.legend_width.setValue(150)
self.legend_height.setMinimum(0)
self.legend_height.setMaximum(chart_viewrect.height())
self.legend_height.setValue(75)
def hideLegendSpinbox(self):
self.legend_settings.setVisible(False)
def toggle_attached(self):
legend = self.chart.legend()
if legend.isAttachedToChart():
legend.detachFromChart()
legend.setBackgroundVisible(True)
legend.setBrush(QBrush(QColor(128, 128, 128, 128)))
legend.setPen(QPen(QColor(192, 192, 192, 192)))
self.show_legend_spinbox()
self.update_legend_layout()
else:
legend.attachToChart()
legend.setBackgroundVisible(False)
self.hideLegendSpinbox()
self.update()
def add_barset(self):
series_count = self.series.count()
bar_set = QBarSet(f"set {series_count}")
delta = series_count * 0.1
bar_set.append([1 + delta, 2 + delta, 3 + delta, 4 + delta])
self.series.append(bar_set)
def remove_barset(self):
sets = self.series.barSets()
len_sets = len(sets)
if len_sets > 0:
self.series.remove(sets[len_sets - 1])
def set_legend_alignment(self):
button = self.sender()
legend = self.chart.legend()
alignment = legend.alignment()
if alignment == Qt.AlignTop:
legend.setAlignment(Qt.AlignLeft)
if button:
button.setText("Align (Left)")
elif alignment == Qt.AlignLeft:
legend.setAlignment(Qt.AlignBottom)
if button:
button.setText("Align (Bottom)")
elif alignment == Qt.AlignBottom:
legend.setAlignment(Qt.AlignRight)
if button:
button.setText("Align (Right)")
else:
if button:
button.setText("Align (Top)")
legend.setAlignment(Qt.AlignTop)
def toggle_bold(self):
legend = self.chart.legend()
font = legend.font()
font.setBold(not font.bold())
legend.setFont(font)
def toggle_italic(self):
legend = self.chart.legend()
font = legend.font()
font.setItalic(not font.italic())
legend.setFont(font)
def font_size_changed(self):
legend = self.chart.legend()
font = legend.font()
font_size = self.font_size.value()
if font_size < 1:
font_size = 1
font.setPointSizeF(font_size)
legend.setFont(font)
def update_legend_layout(self):
legend = self.chart.legend()
rect = QRectF(self.legend_posx.value(), self.legend_posy.value(),
self.legend_width.value(), self.legend_height.value())
legend.setGeometry(rect)
legend.update()
class View(QGraphicsView):
def __init__(self, parent=None):
super(View, self).__init__(parent)
self.setScene(QGraphicsScene(self))
self.setDragMode(QGraphicsView.NoDrag)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
# Chart
self._chart = QChart()
self._chart.setMinimumSize(640, 480)
self._chart.setTitle("Hover the line to show callout. Click the line "
"to make it stay")
self._chart.legend().hide()
self.series = QLineSeries()
self.series.append(1, 3)
self.series.append(4, 5)
self.series.append(5, 4.5)
self.series.append(7, 1)
self.series.append(11, 2)
self._chart.addSeries(self.series)
self.series2 = QSplineSeries()
self.series2.append(1.6, 1.4)
self.series2.append(2.4, 3.5)
self.series2.append(3.7, 2.5)
self.series2.append(7, 4)
self.series2.append(10, 2)
self._chart.addSeries(self.series2)
self._chart.createDefaultAxes()
self._chart.setAcceptHoverEvents(True)
self.setRenderHint(QPainter.Antialiasing)
self.scene().addItem(self._chart)
self._coordX = QGraphicsSimpleTextItem(self._chart)
self._coordX.setPos(self._chart.size().width() / 2 - 50,
self._chart.size().height())
self._coordX.setText("X: ")
self._coordY = QGraphicsSimpleTextItem(self._chart)
self._coordY.setPos(self._chart.size().width() / 2 + 50,
self._chart.size().height())
self._coordY.setText("Y: ")
self._callouts = []
self._tooltip = Callout(self._chart)
self.series.clicked.connect(self.keepCallout)
self.series.hovered.connect(self.tooltip)
self.series2.clicked.connect(self.keepCallout)
self.series2.hovered.connect(self.tooltip)
self.setMouseTracking(True)
def resizeEvent(self, event):
if self.scene():
self.scene().setSceneRect(QRectF(QPointF(0, 0), event.size()))
self._chart.resize(event.size())
self._coordX.setPos(self._chart.size().width() / 2 - 50,
self._chart.size().height() - 20)
self._coordY.setPos(self._chart.size().width() / 2 + 50,
self._chart.size().height() - 20)
for callout in self._callouts:
callout.updateGeometry()
QGraphicsView.resizeEvent(self, event)
def mouseMoveEvent(self, event):
pos = self._chart.mapToValue(event.position().toPoint())
x = pos.x()
y = pos.y()
self._coordX.setText(f"X: {x:.2f}")
self._coordY.setText(f"Y: {y:.2f}")
QGraphicsView.mouseMoveEvent(self, event)
def keepCallout(self):
self._callouts.append(self._tooltip)
self._tooltip = Callout(self._chart)
def tooltip(self, point, state):
if self._tooltip == 0:
self._tooltip = Callout(self._chart)
if state:
self._tooltip.setText("X: {0:.2f} \nY: {1:.2f} ".format(
point.x(), point.y()))
self._tooltip.setAnchor(point)
self._tooltip.setZValue(11)
self._tooltip.updateGeometry()
self._tooltip.show()
else:
self._tooltip.hide()